Bacterial Colonies in Your Environment

Biology research testing groundoratory Report Bacterial Colonies in Your Environment Purpose The purpose of this testing ground is to culture, picture and describe microorganisms (bacterial colonies) from sources in daily surroundings that we be capable to. Variables and Controls The in underage variable was the places we decided to swob for bacteria. The pendent variable was the types of bacteria that grew within the agar-agar plate The controlled variables were the temperature in the sir, how skintight the agar plate was sealed and how much fodder was in the agar plate. Materials -a sterilized agar plate (with lid) -markers -soap and water system -clear tape - unimaginative cotton swabs Lab Safety In this science lab we deprivati championd to wash our manpower constantly before and after the lab. We were transaction with bacteria that has the tycoon to be harmful and to avoid nausea/sickness we need to thoroughly wash our hands and be care ful close to the bacteria. Another precaution to take was to not cough into or put whatever bacteria from our bodies into the agar plate. Those bacteria could be extremely dangerous and shouldnt be cultivated. Observations Located on final page(s) Application Questions 1.

The purpose of high temperature the agar plates in the autoclave prior to inoculating them with microorganisms was to posit sure that the lab results were exact. The plates energy fetch not been right cleaned beforehand or the bacteria in the air/where they were stored might still nonplus on the plate. Due to those bacteria the lab re sults might dupe turned out differently bec! ause we civilised different bacteria from places we did NOT swab. To prevent this we must sterile the plates. Bacteria dies at high temperatures so the plates were heated to butcher off any lingering bacteria that may have been present on the agar plate. 2.A sterile cotton swab was use as opposed to a unshakable one because befoulment might have occurred and twisted the lab results. If a regular cotton swab was used from a epic box, or a previously...If you want to get a broad(a) essay, separate it on our website: OrderCustomPaper.com

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